Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 14130 2246 16% 0.00 2917 1560 53% 6.0
10 Kinds of People 30310 6157 20% 0.01 5274 3758 71% 4.7
1's For All 734 143 19% 0.00 150 93 62% 6.6
2048 12348 5569 45% 0.00 5427 4609 85% 2.4
2, 4, 6, Greaaat 1222 174 14% 0.15 144 60 42% 8.3
3D Printed Statues 16834 7745 46% 0.00 7324 6544 89% 1.9
3D Printer 1144 183 16% 0.00 504 137 27% 9.0
3-Sided Dice 3090 251 8% 0.00 518 178 34% 8.7
4 thought 14308 4975 35% 0.00 4728 3994 84% 2.8
99 Problems 393 225 57% 0.00 217 209 96% 1.6
A1 Paper 7566 2346 31% 0.00 2327 1867 80% 3.3
Aa 272 143 53% 0.01 72 43 60% 6.1 - 7.8
Aaah! 40492 18953 47% 0.00 17173 16007 93% 1.6
Abandoned Animal 3059 695 23% 0.03 777 568 73% 5.6
ABC 23497 10685 45% 0.00 10186 9234 91% 1.9
Ab Initio 2607 422 16% 0.08 364 228 63% 7.5
Above Average 16232 6644 41% 0.00 6413 5738 89% 2.2
A+B Problem 10966 1057 10% 0.03 1563 509 33% 8.5
Abridged Reading 295 114 39% 0.00 111 87 78% 5.3
A Brief Gerrymander 582 115 20% 0.11 109 53 49% 8.8
Abstract Art 473 156 33% 0.00 133 96 72% 7.1
Abstract Painting 1344 521 39% 0.00 458 362 79% 4.5
Absurdistan Roads II 724 244 34% 0.00 248 164 66% 6.9
Absurdistan Roads III 1957 564 29% 0.02 524 396 76% 5.8
Access Denied 808 221 27% 0.01 208 185 89% 3.5
Access Points 558 188 34% 0.01 181 140 77% 5.8
Accounting 3659 1075 29% 0.01 897 678 76% 3.3
A Classy Problem 14311 3839 27% 0.01 3298 2594 79% 3.9
ACM Contest Scoring 9470 5936 63% 0.00 5328 5034 94% 1.6
Ada Loveslaces 84 19 23% 0.01 24 17 71% 5.3
Add 'Em Up! 3188 757 24% 0.01 793 565 71% 4.9
Adding Words 17063 4276 25% 0.00 3906 3078 79% 3.6
Add Two Numbers 9535 6004 63% 0.00 5539 5312 96% 1.3
A Different List Game 7844 552 7% 0.00 1051 201 19% 9.3
A Different Problem 45818 16867 37% 0.00 15502 13409 86% 2.6
Adjoin the Networks 2990 758 25% 0.00 662 527 80% 5.9
Administrative Difficulties 2150 465 22% 0.02 436 309 71% 5.9
Ads 1061 158 15% 0.00 212 98 46% 5.0
Advanced Causal Measurements 130 41 32% 0.10 43 32 74% 7.4
Adventure Begins 418 133 32% 0.06 122 94 77% 6.3
Adventures in Moving -- Part IV 1871 415 22% 0.00 362 295 81% 5.0
A Favourable Ending 2342 630 27% 0.00 585 451 77% 4.7
A Feast For Cats 4259 1592 37% 0.00 1171 1013 87% 3.3
A Flea on a Chessboard 1076 225 21% 0.01 226 160 71% 5.5
Agamemnon's Odyssey 145 40 28% 0.09 43 29 67% 5.7
A Horse Shoe-In 191 18 9% 0.27 25 11 44% 9.1
AI Jeopardy 629 84 13% 0.02 86 55 64% 7.0
Air Conditioned Minions 8777 2615 30% 0.00 2581 2023 78% 3.4
Airline Hub 2507 550 22% 0.01 498 297 60% 6.8
Airport Coffee 1553 305 20% 0.04 293 198 68% 7.0
Airport Construction 3918 485 12% 0.02 430 225 52% 8.0
Airport Logistics 79 23 29% 0.00 29 21 72% 7.3
Airports 719 222 31% 0.11 194 144 74% 5.7
Air Rally 110 1 1% 0.98 18 1 6% 8.5
Akcija 13974 6147 44% 0.00 5100 4570 90% 2.0
Aladin 909 104 11% 0.10 149 33 22% 9.0
Alchemy 181 36 20% 0.02 48 25 52% 9.1
Alchemy 101 1052 336 32% 0.05 244 200 82% 3.8
Alea iacta est 46 16 35% 0.19 21 15 71% 6.7
Alehouse 1262 468 37% 0.02 445 319 72% 5.1
Alex and Barb 1699 626 37% 0.00 713 567 80% 3.4
Alice in the Digital World 6743 1766 26% 0.01 1595 1270 80% 4.0
Alien Codebreaking 334 33 10% 0.59 63 18 29% 8.1
Alien Integers 1554 309 20% 0.00 395 282 71% 5.6
Alien Microwave 295 112 38% 0.00 147 105 71% 6.6
Alien Numbers 3266 1762 54% 0.00 1734 1591 92% 1.9
A List Game 12526 3768 30% 0.00 3656 3097 85% 3.0
All about that base 3605 1465 41% 0.00 1418 1212 85% 2.7
All Colourings 12 7 58% 0.13 9 7 78% 6.0
All Different Directions 1889 913 48% 0.00 865 781 90% 2.3
Allergy Test 700 187 27% 0.00 233 122 52% 7.8
All Friends 1293 245 19% 0.00 230 125 54% 8.7
All in the Family 218 45 21% 0.00 65 43 66% 5.1
All is Well 167 41 25% 0.02 42 34 81% 6.8
All Just A Dream 3328 937 28% 0.05 652 506 78% 5.3
All Kill 145 111 77% 0.00 65 57 88% 2.7
Alloys 1157 395 34% 0.00 421 346 82% 3.8
All Pairs Shortest Path 15699 3013 19% 0.00 1896 1374 72% 5.4
Almost Balanced 15 6 40% 0.27 9 5 56% 6.8
Almost Perfect 14982 3409 23% 0.00 3430 2745 80% 3.3
Almost Union-Find 13735 2253 16% 0.02 2011 1280 64% 5.6
Alphabet 3178 1622 51% 0.00 1548 1311 85% 3.0
Alphabet Animals 10793 1919 18% 0.00 1603 1131 71% 5.2
Alphabet Spam 12494 7857 63% 0.00 6677 6422 96% 1.4
Alternating Current 723 702 97% 0.00 132 126 95% 1.4 - 8.4
Alternative Anagram 279 89 32% 0.00 83 59 71% 7.3
Alternative Bracket Notation 248 107 43% 0.00 114 94 82% 5.3
Alto Singing 139 55 40% 0.00 55 50 91% 3.8
Altruistic Amphibians 625 178 28% 0.22 151 113 75% 5.4
Amalgamated Artichokes 5612 2533 45% 0.01 2225 1974 89% 2.5
Amanda Lounges 2164 635 29% 0.03 546 447 82% 5.5
A Mazing! 4204 1092 26% 0.09 449 335 75% 5.3
Amazing Adventures 593 157 26% 0.02 183 127 69% 7.0
Amazing Race 778 190 24% 0.29 171 130 76% 6.0
Ambiguous Result 305 72 24% 0.02 104 66 63% 7.2
Amsterdam Distance 2706 1363 50% 0.00 1334 1153 86% 2.6
A Multiplication Game 1632 660 40% 0.00 714 558 78% 4.2
Anagram Counting 5306 2100 40% 0.00 2052 1723 84% 3.2
AND Permutation 156 30 19% 0.22 47 22 47% 8.4
Andrew the Ant 592 183 31% 0.01 185 142 77% 5.2